In this story, students learn that clouds have different names based on their appearance and position in the atmospheric column. Contrails, or condensation trails, are also discussed. This science-based storybook is the one of four under the title...(View More) Elementary GLOBE; each book also has companion learning activities that complement the science covered in each story. GLOBE (Global Learning and Observation to Benefit the Environment) is a worldwide, hands-on, K-12 school-based science education program.(View Less)

This identification chart is a basic guide to observing contrails. It shows examples of the three types of contrails: short-lived, persistent, and persistent spreading. The chart is intended for use by students participating in the GLOBE program....(View More) GLOBE (Global Learning and Observation to Benefit the Environment) is a worldwide, hands-on, K-12 school-based science education program.(View Less)